de.lmu.ifi.dbs.elki.data
Class DatabaseObjectGroupArray

java.lang.Object
  de.lmu.ifi.dbs.elki.data.DatabaseObjectGroupArray

All Implemented Interfaces:

DatabaseObjectGroup, Iterable<Integer>

public final class DatabaseObjectGroupArray
extends Object
implements DatabaseObjectGroup

Array backed DatabaseObjectGroup. Stores a list of DatabaseObjectIDs using an array of Integer[].

Author:

Erich Schubert

Field Summary

Integer[]

ids ID storage.

Constructor Summary

DatabaseObjectGroupArray(Integer[] ids)
Constructor.

Method Summary

Collection<Integer>	getIDs() Retrieve the IDs as collection.
Iterator<Integer>	iterator() Return an iterator over the array.
int	size() Return the backing array length.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

ids

public Integer[] ids

ID storage.

Constructor Detail

DatabaseObjectGroupArray

public DatabaseObjectGroupArray(Integer[] ids)

Constructor.

Parameters:

ids - Array of IDs

Method Detail

getIDs

public Collection<Integer> getIDs()

Retrieve the IDs as collection. Note that for array backed groups this will generate a copy.

Specified by:

getIDs in interface DatabaseObjectGroup

Returns:

a collection of IDs

iterator

public Iterator<Integer> iterator()

Return an iterator over the array.

Specified by:

iterator in interface DatabaseObjectGroup

Specified by:

iterator in interface Iterable<Integer>

Returns:

an iterator for the IDs

size

public int size()

Return the backing array length.

Specified by:

size in interface DatabaseObjectGroup

Returns:

collection size